// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "base/command_line.h"
#include "base/files/file_util.h"
#include "base/path_service.h"
#include "base/process/launch.h"
#include "base/strings/string_util.h"
#include "testing/gtest/include/gtest/gtest.h"

base::FilePath GinShellPath()
{
    base::FilePath dir;
    PathService::Get(base::DIR_EXE, &dir);
    return dir.AppendASCII("gin_shell");
}

base::FilePath HelloWorldPath()
{
    base::FilePath path;
    PathService::Get(base::DIR_SOURCE_ROOT, &path);
    return path
        .AppendASCII("gin")
        .AppendASCII("shell")
        .AppendASCII("hello_world.js");
}

TEST(GinShellTest, HelloWorld)
{
    base::FilePath gin_shell_path(GinShellPath());
    base::FilePath hello_world_path(HelloWorldPath());
    ASSERT_TRUE(base::PathExists(gin_shell_path));
    ASSERT_TRUE(base::PathExists(hello_world_path));

    base::CommandLine cmd(gin_shell_path);
    cmd.AppendArgPath(hello_world_path);
    std::string output;
    ASSERT_TRUE(base::GetAppOutput(cmd, &output));
    base::TrimWhitespaceASCII(output, base::TRIM_ALL, &output);
    ASSERT_EQ("Hello World", output);
}
